I'm sorry, but I have to disagree about this being a possible series finale. Personally, I hate endings like that because, although it's interesting to make up your own, I feel an ending needs closure. Having the show end after that would disappoint me. I'm not saying shows shouldn't do this, I just don't like it when…

Good review. One thing, though. You say gems can't die, but Pearl said in "So Many Birthdays" that they can die. Are you sure they can't die?